On Mon, Sep 26, 2011 at 2:21 PM, Korey Calmettes <kcalmet...@icontime.com>wrote:

> Thanks for responding so quickly.
>
> I performed the same general experiment.  Here is the output when the
> error occurred.
>
> sqlite> .tables
> (5386) os_unix.c:28414: (22) mmap(//test.db-shm) -
>

Looks like a mmap() call is failing here:
http://www.sqlite.org/src/artifact/10e0c4dcdb?ln=4009-4011

Looks like you are using a database in the root of the filesystem
("/test.db").  Do you get the same error if you put the database file in a
directory someplace?


> (5386) statement aborts at 109: [SELECT name FROM sqlite_master WHERE
> type IN ('table','view') AND name NOT LIKE 'sqlite_%' UNION ALL SELECT
> name FROM sqlite_temp_master WHERE type IN ('table','view') ORDER BY 1]
> disk I/O error
> Error: disk I/O error
> sqlite>
>
> Any ideas?
>
> Korey
>
>
> -----Original Message-----
> From: sqlite-users-boun...@sqlite.org
> [mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Richard Hipp
> Sent: September 26, 2011 8:38 AM
> To: General Discussion of SQLite Database
> Subject: Re: [sqlite] Problem with using WAL journal mode in embedded
> system (disk I/O error)
>
> On Mon, Sep 26, 2011 at 11:30 AM, Korey Calmettes
> <kcalmet...@icontime.com>wrote:
>
> > ~ # sqlite3 test.db
> > SQLite version 3.7.7.1 2011-06-28 17:39:05 Enter ".help" for
> > instructions Enter SQL statements terminated with a ";"
> > sqlite> .tables
> > test
> > sqlite> pragma journal_mode=wal;
> > wal
> > sqlite> .tables
> > Error: disk I/O error
> > sqlite>
> >
> >
> > Any ideas on what may be causing this error and any suggestions for a
> > work-around?
> >
>
> Type:
>
>    .log stdout
>
> at the beginning of this session and run your experiment again please.
> The extra output might give some clues.
>
>
> --
> D. Richard Hipp
> d...@sqlite.org
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-- 
D. Richard Hipp
d...@sqlite.org
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